# encoding:utf-8

from exts import db
import shortuuid
from datetime import datetime
from werkzeug.security import generate_password_hash,check_password_hash
class User(db.Model):
    __tablename__ = "users"
    id = db.Column(db.String(100),primary_key=True,default=shortuuid.uuid)
    telephone = db.Column(db.String(11),nullable=False)
    username = db.Column(db.String(50),nullable=False)
    password = db.Column(db.String(100),nullable=False)

    def __init__(self,*args,**kwargs):
        telephone = kwargs.get("telephone")
        username = kwargs.get("username")
        password = kwargs.get("password")

        self.telephone =telephone
        self.username = username
        self.password = generate_password_hash(password)
    
    def check_password(self,raw_password):
        result = check_password_hash(self.password,raw_password)
        return result


class Question(db.Model):
    __tablename__ = 'questions'
    id = db.Column(db.Integer,primary_key=True,autoincrement=True)
    title = db.Column(db.String(100),nullable=False)
    content = db.Column(db.Text,nullable=False)
    create_time = db.Column(db.DateTime,default=datetime.now)
    author_id = db.Column(db.String(100),db.ForeignKey('users.id'))

    author = db.relationship('User',backref='questions')


class Answer(db.Model):
    __tablename__ = 'answers'
    id = db.Column(db.Integer,primary_key=True,autoincrement=True)
    content = db.Column(db.Text,nullable=False)
    question_id = db.Column(db.Integer,db.ForeignKey('questions.id'))
    author_id = db.Column(db.String(100),db.ForeignKey('users.id'))
    create_time = db.Column(db.DateTime,default=datetime.now)
    question = db.relationship('Question',backref=db.backref('answers',order_by=create_time.desc()))
    author = db.relationship('User',backref=db.backref('answers'))